GeForce 830M vs GeForce GT 130

Intro

Compare all that to the GeForce GT 130, which makes use of a 55 nm design. nVidia has clocked the core speed at 500 MHz. The DDR2 memory works at a frequency of 250 MHz on this specific model. It features 48 SPUs as well as 24 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GT 130		75 Watts
	Difference: 50 Watts (200%)

Memory Bandwidth

In theory, the GeForce 830M should be a small bit faster than the GeForce GT 130 in general. (explain)

GeForce 830M		14400 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 2400 (20%)

Texel Rate

The GeForce 830M will be quite a bit (approximately 37%) more effective at anisotropic filtering than the GeForce GT 130. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 4464 (37%)

Pixel Rate

The GeForce 830M will be a small bit (approximately 3%) better at FSAA than the GeForce GT 130, and able to handle higher screen resolutions while still performing well. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 232 (3%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.